1 #ifndef CYGONCE_HAL_HAL_DIAG_H
2 #define CYGONCE_HAL_HAL_DIAG_H
4 //=============================================================================
8 // HAL Support for Kernel Diagnostic Routines
10 //=============================================================================
11 //####ECOSGPLCOPYRIGHTBEGIN####
12 // -------------------------------------------
13 // This file is part of eCos, the Embedded Configurable Operating System.
14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
15 // Copyright (C) 2002 Gary Thomas
17 // eCos is free software; you can redistribute it and/or modify it under
18 // the terms of the GNU General Public License as published by the Free
19 // Software Foundation; either version 2 or (at your option) any later version.
21 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
22 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
23 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
26 // You should have received a copy of the GNU General Public License along
27 // with eCos; if not, write to the Free Software Foundation, Inc.,
28 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
30 // As a special exception, if other files instantiate templates or use macros
31 // or inline functions from this file, or you compile this file and link it
32 // with other works to produce a work based on this file, this file does not
33 // by itself cause the resulting work to be covered by the GNU General Public
34 // License. However the source code for this file must still be made available
35 // in accordance with section (3) of the GNU General Public License.
37 // This exception does not invalidate any other reasons why a work based on
38 // this file might be covered by the GNU General Public License.
40 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
41 // at http://sources.redhat.com/ecos/ecos-license/
42 // -------------------------------------------
43 //####ECOSGPLCOPYRIGHTEND####
44 //=============================================================================
45 //#####DESCRIPTIONBEGIN####
50 // Purpose: HAL Support for Kernel Diagnostic Routines
51 // Description: Diagnostic routines for use during kernel development.
52 // Usage: #include <cyg/hal/hal_diag.h>
54 //####DESCRIPTIONEND####
56 //=============================================================================
58 #include <pkgconf/hal.h>
60 #include <cyg/infra/cyg_type.h>
62 #ifndef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
63 // These should not need to be prototyped here, but where????
65 cyg_hal_plf_serial_getc(void);
69 cyg_hal_plf_serial_putc(cyg_uint8 ch);
72 cyg_hal_plf_serial_putc(void* __ch_data, cyg_uint8 ch);
77 cyg_hal_plf_serial_init(void);
80 cyg_hal_plf_serial_init_channel(void);
82 #endif //#ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
86 // See the #else clause at the end
87 #if defined(CYGSEM_HAL_VIRTUAL_VECTOR_DIAG)
89 #include <cyg/hal/hal_if.h>
91 #define HAL_DIAG_INIT() hal_if_diag_init()
92 #define HAL_DIAG_WRITE_CHAR(_c_) hal_if_diag_write_char(_c_)
93 #define HAL_DIAG_READ_CHAR(_c_) hal_if_diag_read_char(&_c_)
95 #else // everything by steam
97 //-----------------------------------------------------------------------------
98 // functions implemented in hal_diag.c
100 externC void hal_diag_init(void);
102 externC void hal_diag_write_char(char c);
104 externC void hal_diag_read_char(char *c);
106 //-----------------------------------------------------------------------------
108 #define HAL_DIAG_INIT() hal_diag_init()
110 #define HAL_DIAG_WRITE_CHAR(_c_) hal_diag_write_char(_c_)
112 #define HAL_DIAG_READ_CHAR(_c_) hal_diag_read_char(&_c_)
114 #endif // CYGSEM_HAL_VIRTUAL_VECTOR_DIAG
116 //-----------------------------------------------------------------------------
119 // Need to figure out what to do here at some point, for now, I just copied
120 // these from the simulator hal_diag.h
122 //-----------------------------------------------------------------------------
123 // Register addresses
125 #define PAL_RESET 0x00
126 #define PAL_CPU_NR 0x04
128 #define PAL_NR_CPU 0x0a
130 #define PAL_READ_FIFO 0x10
131 #define PAL_READ_STATUS 0x14
132 #define PAL_WRITE_FIFO 0x18
133 #define PAL_WRITE_STATUS 0x1a
135 #define OEA_DEV 0xf0001000
137 //-----------------------------------------------------------------------------
139 #define HAL_DIAG_INIT()
142 #ifndef HAL_DISABLE_INTERRUPTS
143 #define HAL_DISABLE_INTERRUPTS
144 #define HAL_RESTORE_INTERRUPTS
147 #define HAL_DIAG_WRITE_CHAR(_c_) \
149 volatile unsigned char *tty_buffer = \
150 (unsigned char*)(OEA_DEV + PAL_WRITE_FIFO); \
151 volatile unsigned char *tty_status = \
152 (unsigned char*)(OEA_DEV + PAL_WRITE_STATUS); \
153 unsigned long __state; \
155 HAL_DISABLE_INTERRUPTS(__state); \
158 while( *tty_status == 0 ) continue; \
161 HAL_RESTORE_INTERRUPTS(__state); \
164 #define HAL_DIAG_READ_CHAR(_c_) \
166 volatile unsigned char *tty_buffer = \
167 (unsigned char*)(OEA_DEV + PAL_READ_FIFO); \
168 volatile unsigned char *tty_status = \
169 (unsigned char*)(OEA_DEV + PAL_READ_STATUS); \
170 while( *tty_status == 0 ) continue; \
174 #endif // CYGONCE_HAL_HAL_DIAG_H